“The description of the proud or magnanimous man [in Aristotle’s Nichomachean Ethics] is very interesting as showing the difference between pagan and Christian ethics…”. — Bertrand Russell.
SUMMARY: Pride to Aristotle was a virtue, and a means to happiness, but to Christians, it is a sin, and a means to unhappiness.
(About a 7 minute read)
In Judaism, pride is called the root of all evil, a valuation that seems in part to have been carried over into Christianity, for Christians regard pride as the first and foremost of the Seven Deadly Sins.
In Catholicism, the Seven Deadly Sins are not to be confused with “Mortal Sins” — they do not automatically damn you to hell if you fail to repent of them before death, but they are pretty much bad enough anyway.
In contrast to the Jewish and Christian views, pride was an actual virtue to Aristotle. Which of course, raises the question, “Why did Aristotle think pride was a virtue?”